Table 5. Spending time (± SD) of the piglets’ behaviors during the lactating period
| Behavior | Housing system | Day | % | p-value |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 14 | 20 |
| Suckling | FC | 330.6 ± 28.9 | 331.3 ± 18.9 | 287.3 ± 24.7 | 356 ± 30.1 | 326.6 ± 48.4 | 330.7 ± 57.1 | 274.7 ± 48.4 | 340.0 ± 28.0 | 304 ± 25.1 | 22.2 | ns |
| AFP | 382.7 ± 130.5 | 340.2 ± 42.4 | 292.7 ± 64.6 | 318.8 ± 25.4 | 302.7 ± 46.7 | 298.2 ± 43.4 | 331.3 ± 18.9 | 287.3 ± 61.7 | 307.0 ± 80.9 | 22.1 |
| Lying | FC | 1,072.3 ± 31.2 | 1,039.3 ± 22.3 | 1,069.3 ± 86.5 | 1,005.3 ± 46.9 | 1,061.3 ± 40.6 | 1,044.7 ± 37.5 | 1,083.3 ± 32.0 | 992.0 ± 26.5 | 1,020.0 ± 55.2 | 72.4 | ns |
| AFP | 993.3 ± 139.2 | 1,060.2 ± 49.6 | 1,112.0 ± 62.6 | 1,070.8 ± 33.1 | 1,070.0 ± 37.5 | 1,088.5 ± 59.2 | 1,039.3 ± 22.3 | 1,069.3 ± 86.5 | 1,065.6 ± 100.1 | 73.8 |
| Walking | FC | 37.1 ± 10.2 | 67.3 ± 11.5a | 83.3 ± 38.3 | 78.0 ± 18.0 | 52.0 ± 9.2 | 64.7 ± 22.0 | 82.0 ± 19.7 | 108.0 ± 19.1 | 116.0 ± 53.3 | 5.3 | < 0.05 |
| AFP | 64.0 ± 23.1 | 39.5 ± 7.3b | 35.3 ± 11.0 | 50.4 ± 9.5 | 67.3 ± 10.3 | 53.3 ± 17.0 | 67.3 ± 11.5 | 83.3 ± 38.3 | 67.4 ± 24.8 | 4.1 |
Values within treatment (columns) with different superscripts differ significantly (p < 0.05).
FC, farrowing crate; AFP, alternative farrowing pen; ns, not significant (p > 0.05).